P1315
Igniter Circuit Malfunction No. 4
Severity
⚠️ MediumCan you drive?
Do not drive — repair immediately
Approx. repair cost
$17–56 (est.)
Symptoms
- Unstable engine operation
- Misfire in cylinder 4
- Loss of engine power
- Increased fuel consumption
- Check Engine Light Is On
Causes
- Malfunction of the 4th cylinder igniter
- Damage to the wiring to the igniter
- Poor contact in the igniter connector
- Malfunction of the ignition control module
- Ignition circuit power problems
How to Fix
- Check the condition of the igniter of the 4th cylinder
- Check the integrity of the wiring and connectors
- Measure the resistance of the igniter
- Check signals from the control module
- Replace igniter if necessary